/*
 * Copyright (C) 2012 eXo Platform SAS.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.everrest.websockets;

import org.everrest.websockets.message.InputMessage;

/**
 * Receives incoming messages. Implementation of this interface should be added to WSConnection.
 *
 * @author <a href="mailto:andrew00x@gmail.com">Andrey Parfonov</a>
 * @version $Id: $
 * @see WSConnection#registerMessageReceiver(WSMessageReceiver)
 * @see WSConnection#removeMessageReceiver(WSMessageReceiver)
 */
public interface WSMessageReceiver
{
   /**
    * Called when new message received.
    *
    * @param input
    *    input message
    */
   void onMessage(InputMessage input);

   /**
    * Called when error occurs when process incoming message so method {@link #onMessage(org.everrest.websockets.message.InputMessage)}
    * cannot be called.
    *
    * @param error
    *    error
    */
   void onError(Exception error);
}
